$2\cos^2\left(x\right)+2\sqrt{2}\cos\left(x\right)+1$
$\frac{5x-1}{5x^2+17x+6}$
$3x-7>2$
$4+-13+-1+-8$
$\frac{dy}{dx}=\frac{2y^2}{1+x^2}$
$3x^2+e^{-2x}\cdot3x$
$\left(1-5y\right)^3$
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